/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package ast

import (
	"strings"
)

const (
	RestoreDefault RestoreFlag = 0

	RestoreLowerKeyword RestoreFlag = 1 << iota // force use lower-case keyword
	RestoreWithoutAlias
	RestoreCompat80
)

type RestoreFlag uint32

func (rf RestoreFlag) Has(flag RestoreFlag) bool {
	return rf&flag != 0
}

type Restorer interface {
	Restore(flag RestoreFlag, sb *strings.Builder, args *[]int) error
}
